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三角定律和恒等式
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工程师经常用到的快速三角定律和恒等式参考。

三角定律数学帮助

正弦定律

 

乳胶!编码:base64,XGZyYWN7c2luXGFscGhhfXtcYWxwaGF9ID0gXGZyYWN7c2luIFxiZXRhfXtifT1cZnJhY3tzaW4gXGdhbW1hfXtjfQ==

 

余弦定律

 

乳胶!编码:base64,YV57Mn0gPWJeezJ9ICtjXnsyfSAtMmJj

 

乳胶!编码:base64,Y29zIFxhbHBoYQ==

 

 

乳胶!编码:base64,Yl57Mn0gPWFeezJ9ICtjXnsyfSAtMmFj

 

乳胶!编码:base64,Y29zIFxiZXRh

 

乳胶!编码:base64,Y157Mn0gPWFeezJ9ICtiXnsyfSAtMmFi

 

乳胶!编码:base64,Y29zIFxnYW1tYQ==

 

切线定律

 

乳胶!编码:base64,XGZyYWN7YS1ifXthK2J9ID0gXGZyYWN7dGFuW1xmcmFjezF9ezJ9KFxhbHBoYSAtIFxiZXRhKV19e3RhbltcZnJhY3sxfXsyfShcYWxwaGEgKyBcYmV0YSldfQ==

 

乳胶!编码:base64,XGZyYWN7Yi1jfXtiK2N9ID0gXGZyYWN7dGFuW1xmcmFjezF9ezJ9KFxiZXRhIC0gXGdhbW1hKV19e3RhbltcZnJhY3sxfXsyfShcYmV0YSArIFxnYW1tYSldfQ==

 

乳胶!编码:base64,XGZyYWN7YS1jfXthK2N9ID0gXGZyYWN7dGFuW1xmcmFjezF9ezJ9KFxhbHBoYSAtIFxnYW1tYSldfXt0YW5bXGZyYWN7MX17Mn0oXGFscGhhICsgXGdhbW1hKV19

 

摩尔韦德公式

 

乳胶!编码:base64,XGZyYWN7YStifXtjfSA9IFxmcmFje2Nvc1tcZnJhY3sxfXsyfSAoXGFscGhhIC0gXGJldGEpIF19IHtzaW4oXGZyYWN7MX17Mn0pIFxnYW1tYX0=

 

 

三角恒等式数学帮助

正切和余切恒等式

 

乳胶!编码:base64,dGFuXHRoZXRhID0gXGZyYWN7c2luXHRoZXRhfSB7Y29zXHRoZXRhfQ==

 

乳胶!编码:base64,Y290XHRoZXRhID0gXGZyYWN7Y29zXHRoZXRhfXtzaW5cdGhldGF9

 

互为倒数关系

 

乳胶!编码:base64,Y3NjXHRoZXRhID0gXGZyYWN7MX17c2luXHRoZXRhfQ==

 

乳胶!编码:base64,c2VjXHRoZXRhID0gXGZyYWN7MX17Y29zXHRoZXRhfQ==

 

乳胶!编码:base64,Y290XHRoZXRhID0gXGZyYWN7MX17dGFuXHRoZXRhfQ==

 

乳胶!编码:base64,c2luXHRoZXRhID0gXGZyYWN7MX17Y3NjXHRoZXRhfQ==

 

乳胶!编码:base64,Y29zXHRoZXRhID0gXGZyYWN7MX17c2VjXHRoZXRhfQ==

 

乳胶!编码:base64,dGFuXHRoZXRhID0gIFxmcmFjezF9e2NvdFx0aGV0YX0=

 

毕达哥拉斯恒等式

 

乳胶!编码:base64,c2luXnsyfVx0aGV0YSArIGNvc157Mn1cdGhldGEgPSAx

 

乳胶!编码:base64,dGFuXnsyfVx0aGV0YSArIDEgPSBzZWNeezJ9XHRoZXRh

 

乳胶!编码:base64,Y290XnsyfVx0aGV0YSArIDEgPWNzY157Mn1cdGhldGE=

 

偶数和奇数身份

 

乳胶!编码:base64,c2luKC0gXHRoZXRhKSA9IC1zaW5cdGhldGE=

 

乳胶!编码:base64,Y29zKC1cdGhldGEpID0gY29zXHRoZXRh

 

乳胶!编码:base64,dGFuKC1cdGhldGEpID0gLXRhblx0aGV0YQ==

 

乳胶!编码:base64,Y3NjKC1cdGhldGEpID0gLWNzY1x0aGV0YQ==

 

乳胶!编码:base64,c2VjKC1cdGhldGEpID0gc2VjXHRoZXRh

 

乳胶!编码:base64,Y290KC1cdGhldGEpID0gLWNvdFx0aGV0YQ==

 

周期性身份

 

乳胶!编码:base64,c2luKFx0aGV0YSArIDJccGkgbiApID0gc2luXHRoZXRh

 

乳胶!编码:base64,Y29zKFx0aGV0YSArIDJccGkgbikgPSBjb3NcdGhldGE=

 

乳胶!编码:base64,dGFuKFx0aGV0YSArIFxwaSBuKSA9IHRhblx0aGV0YQ==

 

乳胶!编码:base64,Y3NjKFx0aGV0YSArIDJccGkgbikgPSBjc2NcdGhldGE=

 

乳胶!编码:base64,c2VjKFx0aGV0YSArIDJccGkgbikgPSBzZWNcdGhldGE=

 

乳胶!编码:base64,Y290KFx0aGV0YSArIFxwaSBuKSA9IGNvdFx0aGV0YQ==

 

双角恒等式

 

乳胶!编码:base64,c2luKDJcdGhldGEpID0gMiBzaW5cdGhldGEgY29zXHRoZXRh

 

乳胶!编码:base64,Y29zKDJcdGhldGEpID0gY29zXnsyfVx0aGV0YSAtc2luXnsyfVx0aGV0YQ==

 

乳胶!编码:base64,PTIgY29zXnsyfVx0aGV0YSAtMQ==

 

乳胶!编码:base64,PTEgLTJzaW5eezJ9XHRoZXRh

 

乳胶!编码:base64,dGFuKDIgXHRoZXRhKSA9IFxmcmFjezJ0YW5cdGhldGF9ezEtdGFuXnsyfVx0aGV0YX0=


 

半角恒等式

 

乳胶!编码:base64,c2luIFxsZWZ0IChcZnJhY3tcdGhldGF9ezJ9IFxyaWdodCkgPSBccG1cc3FydHtcZnJhY3sxLWNvc1x0aGV0YX17Mn19

 

乳胶!编码:base64,Y29zIFxsZWZ0IChcZnJhY3tcdGhldGF9ezJ9IFxyaWdodCkgPSBccG0gXHNxcnR7XGZyYWN7MStjb3NcdGhldGF9ezJ9fQ==

 

乳胶!编码:base64,dGFuIFxsZWZ0IChcZnJhY3tcdGhldGF9ezJ9IFxyaWdodCkgPSBccG0gXHNxcnR7XGZyYWN7MS1jb3NcdGhldGF9ezErY29zXHRoZXRhfX0=

 

和差恒等式

 

乳胶!编码:base64,c2luKFxhbHBoYSBccG0gXGJldGEpID0gc2luIFxhbHBoYSBjb3MgXGJldGEgXHBtIGNvcyBcYWxwaGEgc2luIFxiZXRh

 

乳胶!编码:base64,Y29zKFxhbHBoYSBccG0gXGJldGEpID0gY29zIFxhbHBoYSBjb3MgXGJldGEgXG1wIHNpbiBcYWxwaGEgc2luIFxiZXRh

 

乳胶!编码:base64,dGFuKFxhbHBoYSBccG0gXGJldGEpID0gXGZyYWN7dGFuIFxhbHBoYSBccG0gdGFuIFxiZXRhfXsgMSBcbXAgdGFuIFxhbHBoYSB0YW4gXGJldGF9

 

乘积求和身份

乳胶!编码:base64,c2luIFxhbHBoYSBzaW4gXGJldGEgPSBcZnJhY3sxfXsyfVtjb3MoXGFscGhhLVxiZXRhKSAtIGNvcyhcYWxwaGEgKyBcYmV0YSld

 

乳胶!编码:base64,Y29zIFxhbHBoYSBjb3MgXGJldGEgPSBcZnJhY3sxfXsyfSBbY29zKFxhbHBoYSAtIFxiZXRhKSArIGNvcyhcYWxwaGEgK1xiZXRhKV0=

 

乳胶!编码:base64,c2luIFxhbHBoYSBjb3MgXGJldGEgPSBcZnJhY3sxfXsyfVtzaW4oXGFscGhhICtcYmV0YSkgKyBzaW4gKFxhbHBoYSAtIFxiZXRhKV0=

 

乳胶!编码:base64,Y29zIFxhbHBoYSBzaW4gXGJldGEgPSBcZnJhY3sxfXsyfVtzaW4gKFxhbHBoYSArIFxiZXRhKSAtc2luIChcYWxwaGEgLVxiZXRhKV0=

 

产品标识的总和

 

乳胶!编码:base64,c2luIFxhbHBoYSArIHNpbiBcYmV0YSA9IDIgc2luIFxsZWZ0ICggXGZyYWN7XGFscGhhK1xiZXRhfXsyfSBccmlnaHQpIGNvcyBcbGVmdCggXGZyYWN7XGFscGhhIC1cYmV0YX17Mn1ccmlnaHQp

 

乳胶!编码:base64,c2luIFxhbHBoYSAtIHNpbiBcYmV0YSA9IDIgY29zXGxlZnQgKFxmcmFje1xhbHBoYSArIFxiZXRhfXsyfVxyaWdodCkgc2luIFxsZWZ0KFxmcmFje1xhbHBoYS1cYmV0YX17Mn1ccmlnaHQp

 

乳胶!编码:base64,Y29zXGFscGhhICsgY29zIFxiZXRhID0gMiBjb3MgXGxlZnQoXGZyYWN7XGFscGhhK1xiZXRhfXsyfVxyaWdodCkgY29zXGxlZnQoXGZyYWN7XGFscGhhLVxiZXRhfXsyfVxyaWdodCk=

 

乳胶!编码:base64,Y29zXGFscGhhIC0gY29zIFxiZXRhID0gLTIgc2luIFxsZWZ0KFxmcmFje1xhbHBoYStcYmV0YX17Mn1ccmlnaHQpIHNpblxsZWZ0KFxmcmFje1xhbHBoYS1cYmV0YX17Mn1ccmlnaHQp

Cofunction Identities

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